Optimize language build order

tools/plan-publish.js

@@ -92,7 +92,8 @@ async function planDebianPackages(opts) {
       (await getLangs()).map(async (id) => [id, await readLangConfig(id)])
     )
   );
-  return await Promise.all(
+  return _.sortBy(
+    await Promise.all(
       packages.map(async ({ lang, type, name, buildScriptPath, debPath }) => {
         const desired = crypto
           .createHash("sha1")
@@ -155,8 +156,15 @@ async function planDebianPackages(opts) {
             }
             await runCommand(`make upload L=${lang} T=${type}`);
           },
+          type,
         };
       })
+    ),
+    ({ type, desired, local, remote }) => {
+      // If *not* a shared package, and all we have to do is download
+      // it, then sort to the end.
+      return type !== "shared" && local !== desired && remote === desired;
+    }
   );
 }